CN205116288U - High no negative pressure water supply vacuum inhibitor of sensitivity - Google Patents

Abstract

The utility model discloses a high no negative pressure water supply vacuum inhibitor of sensitivity, it is equipped with the casing in ring flange top, and the below is equipped with down the casing, and the internal portion of inferior valve is packaged with the body that floats, and the upper end of personally experiencing sth. Part of the body of floating is connected with the ejector pin, and it is internal that the upper end of ejector pin lies in the epitheca, and the upper end of ejector pin is connected with a level dish, is equipped with the cushion on this level is coiled, going up the casing and adopting closed structure, only be equipped with a 2 -4 business turn over gas port in the upper end, every business turn over gas port all links to each other through a hose and gas cylinder, and the gas cylinder is prescribed a limit to through the air guide cylinder base and internal and can move about from top to bottom at the epitheca, and push -down spring between gas cylinder and the air guide cylinder base, the lower extreme of gas cylinder are equipped with the business turn over air cock, and when the rebound was coiled to the level, passed in and out that the air cock lower extreme is replaced on the cushion and the realization is closed. Its drive that needs power is less, and the buoyancy of the body that floats is enough to be competent at, so sensitivity is higher, and compact structure, it is more stable to work, its processing is more convenient, and the leakproofness guarantees more easily that the discharge of fumes and gas is great, can satisfy large -traffic water supply equipment's technical requirement.

Description

A kind of highly sensitive non-negative pressure method of water supply vacuum suppresser

Technical field

The utility model relates to non-negative pressure method of water supply field, particularly relates to a kind of highly sensitive non-negative pressure method of water supply vacuum suppresser.

Background technology

Vacuum suppresser is mainly used on the pipe network secondary pressure supply equipment of municipal tap water, suppress to produce negative pressure in water system, keep the pressure balanced equipment of tap water pipe network, current vacuum suppresser is made up of ball float and the large core of valve body two usually, ball float fluctuates according to the change of steady flow compensation tank middle water level, then drives valve body produce action and switch on off operating mode.In large discharge water system, in order to ensure the timely adjustment of steady flow compensation tank internal gas pressure, valve body must have enough large flow cross section, the sealing of this large discharge valve body is not easy to ensure on the one hand, easy generation leakage accident, the power needed when this large discharge valve body switches on off operating mode is on the other hand comparatively large, adopts ball float to provide power comparatively forced, action is sensitive not, and the volume increasing ball float then certainly will cause vacuum suppresser overall structure compact not.In addition, current vacuum suppresser structure design is reasonable not, and wearing and tearing are very fast in the course of the work, and application life is shorter, affects the stability of non-negative pressure water service system.

Utility model content

The purpose of this utility model is to provide a kind of reasonable in design, compact, and security of operation is stablized, discharge capacity is large, highly sensitive, and leakproofness is strong, the non-negative pressure method of water supply vacuum suppresser of long working life.

For realizing above-mentioned technical purpose, the utility model adopts following technical scheme:

A highly sensitive non-negative pressure method of water supply vacuum suppresser, it is provided with upper shell above flange, and below is provided with lower house, and upper shell communicates with lower house; Described lower house is made up of the sidewall of hollow out and bottom, enclosed inside has buoyancy body moving up and down, and the upper end of buoyancy body is connected with a push rod that can move up and down with it, and the upper end of push rod is positioned at upper shell, and the upper end of push rod is connected with a horizontal plate, this horizontal plate is provided with rubber cushion; The guiding mechanism preventing push rod from swinging for push rod passes is installed on the upside of described flange; Described upper shell adopts enclosed construction, 2-4 the air inlet/outlet communicated with air is only provided with in upper end, the top of air inlet/outlet is installed on air filter, each air inlet/outlet is all connected with the gas cylinder be positioned at below it by a flexible pipe, described gas cylinder is limited to through air guide cylinder base can be up and down in upper shell, be provided with between gas cylinder and air guide cylinder base to order about under gas cylinder resets downwards and push away spring, the lower end of described gas cylinder is provided with turnover valve, when horizontal plate moves up, turnover valve lower end is supported and is realized closing on rubber cushion; Described upper shell upper end is coated with dust cover.

When water level in steady flow compensation tank is not enough, buoyancy body declines with liquid level, and then rubber cushion is moved down with horizontal plate, turnover valve and rubber cushion depart from, steady flow compensation tank is inner through lower house, upper shell, gas cylinder, flexible pipe, air inlet/outlet and being in communication with the outside thus, and then can avoid producing negative pressure in steady flow compensation tank and the air of steady flow compensation tank drains into the external world in moisturizing process.When steady flow compensation tank middle water level is full, buoyancy body moves up, and rubber cushion is supported with turnover valve, and owing to passing in and out the lower end of valve by shutoff, therefore steady flow compensation tank cannot be in communication with the outside, and the water in steady flow compensation tank maintains normal hydraulic pressure and can not overflow.

The utility model has following beneficial effect: what it adopted some turnover valves and rubber cushion coordinates the connected state controlling steady flow compensation tank and air, the driving force needed in state conversion process is less, the buoyancy of buoyancy body is enough to be competent at, therefore sensitivity is higher, compact conformation; Because turnover valve is provided with multiple, the bore of single turnover valve, without the need to too large, is processed convenient, and sealing is more prone to ensure, and the overall capacity of multiple turnover valve is larger, can meet the technical requirements of large discharge supply equipment; Because gas cylinder adopts floating type design, when passing in and out valve and rubber cushion supports, can guarantee that each turnover valve all produces tight combination with rubber cushion, leakproofness is ensured.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In figure, 1, lower house, 2, buoyancy body, 3, push rod, 4, flange, 5, guiding mechanism, 6, horizontal plate, 7, gas cylinder, 8, air guide cylinder base, 9, flexible pipe, 10, dust cover, 11, air filter, 12, air inlet/outlet, 13, upper shell, 14, under push away spring, 15, valve is passed in and out, 16, rubber cushion.

Detailed description of the invention

As shown in Figure 1, a kind of highly sensitive non-negative pressure method of water supply vacuum suppresser disclosed in the utility model, it is provided with upper shell 13 above flange 4, and below is provided with lower house 1, and upper shell 13 communicates with lower house 1, described lower house 1 is made up of the sidewall of hollow out and bottom, enclosed inside has buoyancy body 2 moving up and down, the upper end of buoyancy body 2 is connected with a push rod 3 that can move up and down with it, the upper end of push rod 3 is positioned at upper shell 13, and the upper end of push rod 3 is connected with a horizontal plate 6, this horizontal plate 6 is provided with rubber cushion 16, the guiding mechanism 5 preventing push rod 3 from swinging for push rod 3 passes is installed on the upside of described flange 4, described upper shell 13 adopts enclosed construction, 2-4 the air inlet/outlet 12 communicated with air is only provided with in upper end, the top of air inlet/outlet 12 is installed on air filter 11, each air inlet/outlet 12 is all connected with the gas cylinder 7 be positioned at below it by a flexible pipe 9, described gas cylinder 7 is limited in upper shell 13 through air guide cylinder base 8 and can be up and down, be provided with between gas cylinder 7 and air guide cylinder base 8 to order about under gas cylinder 7 resets downwards and push away spring 14, the lower end of described gas cylinder 7 is provided with turnover valve 15, when horizontal plate 6 moves up, turnover valve 15 lower end is supported and is realized closing on rubber cushion 16, described upper shell 13 upper end is coated with dust cover 10.

When water level in steady flow compensation tank is not enough, buoyancy body 2 declines with liquid level, and then rubber cushion 16 is moved down with horizontal plate 6, turnover valve 15 departs from rubber cushion 16, steady flow compensation tank is inner through lower house 1, upper shell 13, gas cylinder 7, flexible pipe 9, air inlet/outlet 12 and being in communication with the outside thus, and then can avoid producing negative pressure in steady flow compensation tank and the air of steady flow compensation tank drains into the external world in moisturizing process.When steady flow compensation tank middle water level is full, buoyancy body 2 moves up, and rubber cushion 16 is supported with turnover valve 15, owing to passing in and out the lower end of valve 15 by shutoff, therefore steady flow compensation tank cannot be in communication with the outside, the water in steady flow compensation tank maintains normal hydraulic pressure and can not overflow.

What it adopted some turnover valves 15 and rubber cushion 16 coordinates the connected state controlling steady flow compensation tank and air, and the driving force needed in state conversion process is less, and the buoyancy of buoyancy body 2 is enough to be competent at, therefore sensitivity is higher, compact conformation; Because turnover valve 15 is provided with multiple, the bore of single turnover valve 15, without the need to too large, is processed convenient, and sealing is more prone to ensure, and the overall capacity of multiple turnover valve 15 is larger, can meet the technical requirements of large discharge supply equipment; Because gas cylinder 7 adopts floating type design, when passing in and out valve 15 and supporting with rubber cushion 16, can guarantee that each turnover valve 15 all produces tight combination with rubber cushion 16, leakproofness is ensured.

Claims (1)

1. a highly sensitive non-negative pressure method of water supply vacuum suppresser, it is characterized in that: it is provided with upper shell above flange, below is provided with lower house, and upper shell communicates with lower house; Described lower house is made up of the sidewall of hollow out and bottom, enclosed inside has buoyancy body moving up and down, and the upper end of buoyancy body is connected with a push rod that can move up and down with it, and the upper end of push rod is positioned at upper shell, and the upper end of push rod is connected with a horizontal plate, this horizontal plate is provided with rubber cushion; The guiding mechanism preventing push rod from swinging for push rod passes is installed on the upside of described flange; Described upper shell adopts enclosed construction, 2-4 the air inlet/outlet communicated with air is only provided with in upper end, the top of air inlet/outlet is installed on air filter, each air inlet/outlet is all connected with the gas cylinder be positioned at below it by a flexible pipe, described gas cylinder is limited to through air guide cylinder base can be up and down in upper shell, be provided with between gas cylinder and air guide cylinder base to order about under gas cylinder resets downwards and push away spring, the lower end of described gas cylinder is provided with turnover valve, when horizontal plate moves up, turnover valve lower end is supported and is realized closing on rubber cushion; Described upper shell upper end is coated with dust cover.